The sidebar showed the same people icon for any calendar with a share,
labelled "Share calendar", and the settings badge only gave a count, so
there was no way to tell from either who could see the calendar. A share
granted to a service account read like a share with other people.
Both now carry a hint listing the recipients ("Shared with
bot@example.com (Booking robot)"), resolved from the principals the
server lists. Until every recipient is known the hint falls back to the
count. Principals are fetched only when a calendar on screen is shared.
The per-client principal cache of the attendee availability check moves
to lib/jmap/principal-cache.ts so both use it. It no longer keeps an
empty or failed answer: the next caller asks again instead of seeing
no principals for the rest of the session.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Stalwart lazily creates an account's default calendar on the first request
that touches it. Bulwark's login fires Calendar/get and CalendarEvent/query
concurrently, and on multi-node servers each node can create its own default,
leaving users with two identical "Personal" calendars. Hold later calendar and
address-book requests per account until the first one settles.